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1.发明申请公开(公告)号：US20190115999A1
公开(公告)日：2019-04-18
申请号：US16082773
申请日：2016-03-09
发明人： Dennis SUNDMAN , Miguel LOPEZ , Nafiseh SHARIATI
IPC分类号： H04L1/00
摘要： A method is disclosed performed by a second transceiver (140) of a packet based wireless communication network (100) for wireless communication with a first transceiver (130) of the network. The method comprises receiving, from the first transceiver (130), a data sequence comprising a first data field comprising data coded with a first modulation and coding scheme, MCS, and a second data field comprising data coded with a second MCS different from the first MCS, wherein the second transceiver (140) has information indicating that the data of the first data field is coded with the first MCS and the data of the second data field is coded with the second MCS. The method further comprises performing a decoding operation on the data of the first data field using the first MCS and a decoding operation on the data of the second data field using the second MCS, and selecting the first MCS or the second MCS based on a result of the performed decoding operations. Thereby a most suitable MCS can be efficiently found for communication between a first and a second transceiver.
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公开(公告)号：US20200344799A1
公开(公告)日：2020-10-29
申请号：US16961309
申请日：2018-01-12
摘要： A method for operating an access point providing access to a wireless network for a plurality of wireless devices, wherein the wireless network includes at least one transmission channel with a sequence of transmission slots. The method includes assigning a first transmission slot to a first wireless device for a scheduled transmission with a priority access to the first transmission slot for the first wireless device, detecting during the first transmission slot that the first wireless device is currently not transmitting data in the assigned first transmission slot, and transmitting an indication to at least a subset of the plurality of wireless devices indicating that at least a time range in the first transmission slot until an end of the first transmission slot is available to the plurality of wireless devices for a data transmission using a random access procedure.
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公开(公告)号：US20180220367A1
公开(公告)日：2018-08-02
申请号：US15747828
申请日：2015-08-06
CPC分类号： H04W52/0216 , H04L12/12 , H04W74/0816 , H04W74/085 , H04W84/12 , Y02D70/00 , Y02D70/142 , Y02D70/146
摘要： The present disclosure relates to a technique of supporting access to a wireless medium of a wireless communication network. A method embodiment comprises: when access of a station (100) to the wireless medium is delayed, determining (S202; S308), by the station, a back-off period indicating the period of time the access of the station to the wireless Determine back-off medium is delayed, and entering (S204; S312), by the station (100), into a sleep mode for a sleep period based on the determined back-off period.
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公开(公告)号：US20220294676A1
公开(公告)日：2022-09-15
申请号：US17624475
申请日：2020-07-10
发明人： Dennis SUNDMAN , Miguel LOPEZ
摘要： A method of transmitting an Orthogonal Frequency Division Multiplexing, OFDM, symbol having a guard interval including a cyclically repeated part of an original symbol comprises applying a guard interval for the OFDM symbol, the guard interval including a first part, where the first part is a cyclic prefix, including an indication whether the applied guard interval has a second part, wherein the second part is a cyclic prefix and/or postfix, applying, when indicated to be present, the second part of the guard interval, and transmitting the OFDM symbol. A method of receiving the symbol, transmitter, receiver and computer programs for implementing the methods are also disclosed.
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公开(公告)号：US20220286338A1
公开(公告)日：2022-09-08
申请号：US17641301
申请日：2020-09-16
发明人： Miguel LOPEZ , Sebastian MAX , Leif WILHELMSSON , Dennis SUNDMAN
摘要： A packet format is disclosed for transmission of data packets over a communication channel, wherein transmission of one of the data packets utilizes a frequency bandwidth, and wherein the frequency bandwidth is dynamically variable between data packets. The packet format defines a frequency bandwidth detection field, wherein the frequency bandwidth detection field of a data packet has a first field content or a second field content, and wherein corresponding parts of the first and second field contents are orthogonal to each other. The first field content is indicative of that transmission of the data packet utilizes a first frequency bandwidth and the second field content is indicative of that transmission of the data packet utilizes a frequency bandwidth which is larger than the first frequency bandwidth. Corresponding methods and apparatuses for transmission/reception of data packets are also disclosed.
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公开(公告)号：US20210226828A1
公开(公告)日：2021-07-22
申请号：US16755501
申请日：2018-09-26
发明人： Leif WILHELMSSON , Luis Felipe DEL CARPIO VEGA , Rocco DI TARANTO , Miguel LOPEZ , Divya PEDDIREDDY , Dennis SUNDMAN
IPC分类号： H04L27/04
摘要： A transmitter is arranged to transmit binary information using a binary amplitude shift keying where information symbols are represented by a signal including a first power state and a second power state. The first power state has a higher signal power than the second power state. A ratio in powers between the first and second power states is below a first value. The ratio in powers between the first and second power states is above a second value such that the states are distinguishably decodable. A network node having such a transmitter, a corresponding method, and a computer program for implementing the method in a transmitter are also disclosed.
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公开(公告)号：US20190229960A1
公开(公告)日：2019-07-25
申请号：US16300418
申请日：2016-07-14
发明人： Miguel LOPEZ , Bo HAGERMAN , Dennis SUNDMAN
摘要： A transmitter in a first wireless communication device and method therein are disclosed. The transmitter comprises a modulator and a rate selector configured to select a data rate. The rate selector comprises an input configured to receive input bits and an output to provide the bits with the selected data rate. The transmitter further comprises a bit to symbol mapper configured to receive the bits from the rate selector and map the bits to symbols of an arbitrary alphabet. The transmitter further comprises a spreading unit configured to spread the symbols received from the bit to symbol mapper to a chip sequence by means of a spreading code. The transmitter further comprises a re-mapping unit configured to map the chip sequence received from the spreading unit to produce signals for providing to the modulator.
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公开(公告)号：US20240349377A1
公开(公告)日：2024-10-17
申请号：US18689699
申请日：2021-09-10
发明人： Abhishek AMBEDE , Rocco DI TARANTO , Sebastian MAX , Charlie PETTERSSON , Jonas SEDIN , Dennis SUNDMAN , Leif WILHELMSSON
CPC分类号： H04W76/15 , H04W28/0967
摘要： Methods and apparatus are provided. In an example aspect, a method in a first wireless communication device of communicating with at least one second wireless communication device on a first channel and a second channel is provided. The method includes selecting a simultaneous transmit and receive (STR) communication mode or non-simultaneous transmit and receive (NSTR) communication mode for communicating with the at least one second wireless communication device on the first channel and the second channel, selecting supported communication parameters for at least one of the first channel and the second channel based on the selected mode, and communicating with the at least one second wireless communication device on the first channel and the second channel using the selected communication mode and according to the selected supported communication parameters.
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公开(公告)号：US20220338022A1
公开(公告)日：2022-10-20
申请号：US17640574
申请日：2019-09-06
IPC分类号： H04W16/28 , H04B7/0452 , H04B7/024 , H04W24/02
摘要： The invention relates to assigning a beam pattern with null-steering beamforming from a first radio network node. A method includes determining a direction to a neighbouring second radio network node, determining an indication on traffic load for the second radio network node, and determining, from the direction and traffic load, a direction for a null of the null-steering beamforming. A computer program and a radio network node are also disclosed.
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公开(公告)号：US20220158771A1
公开(公告)日：2022-05-19
申请号：US17437603
申请日：2020-03-12
IPC分类号： H04L1/18
摘要： An approach for transmission provides a method of enabling Hybrid Automatic Request, HARQ, in an IEEE 802.11 communication. The method includes transmitting, in an element in a Block Acknowledgement, BA, setup of a Medium Access Control, MAC, message, which element indicates a request to use HARQ, receiving a response to said request, and starting to apply HARQ. The approach includes a network entity of a wireless network using IEEE 802.11. The network entity includes a transmitter arranged to transmit, in an element in a Block Acknowledgement, BA, setup of a Medium Access Control, MAC, message, which element indicates a request to use HARQ, a receiver arranged to receive a response to said request, and a communication handler arranged to start to apply HARQ.
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